Rear diff destroyed, anybody got a clue?

[supermike]

https://www.youtube.com/watch?v=1cqY_v2mOsQ

This is what happened to my 4Runner, was overtaking slow trucks and then noise starts to appear. It's a 98 5speed running 285/75/16 tires, 3 inch lift, TRD supercharger, and URD 7th injection kit.

And BTW, I'm l@@king for a 4:10 rear diff w/ elocker. :first:

 

[KidVermicious]

Ooh, shiny! That's all, like, glittery and stuff. I think it's bad when your gear oil glitters.

I don't think you're looking for a 4.10 rear diff. With those tires I think you oughta be looking for a 4.30 diff and a front to go with it. The Great 4Runner In The Sky is telling you it's time to regear.

 

[ajohnson]

The stock elocker ring gear is weak and a common breakage, especially when larger tires are thrown on it. Like KidV said, I recommend changing the gear ratio. An aftermarket ring gear should be a little stronger than stock.

 

[djskorch]

I would not be so worried about the ring gear. More than likely any damage would be done to the spider or carrier gears. This is what I broke in my front diff and have seen multiple pics/reports of breaking but have yet to see a broken ring.